Enclosure weights
CRU/component 2U12 (kg/lb) 2U24 (kg/lb) 5U84 (kg/lb)
Storage enclosure (empty) 4.8/10.56 4.8/10.56 64/141
Disk drive carrier 0.9/1.98 0.3/0.66 0.8/1.8
Blank disk drive carrier (air management
sled)
0.05/0.11 0.05/0.11 —
Power Cooling Module (PCM) 3.5/7.7 3.5/7.7 —
Power Supply Unit (PSU) — — 2.7/6
Fan Cooling Module (FCM) — — 1.4/3
SBB controller module (maximum weight) 2.6/5.8 2.6/5.8 2.6/5.8
SBB expansion module 1.5/3.3 1.5/3.3 1.5/3.3
RBOD enclosure (fully populated with
modules: maximum weight)
32/71 30/66 135/298
EBOD enclosure (fully populated with
modules: maximum weight)
28/62 25/55 130/287
NOTE:
• Weights shown are nominal, and subject to variances.
• 2U rail kits add between 2.8 kg (6.2 lb) and 3.4 kg (7.4 lb) to the aggregate enclosure weight. 5U84 rail kits add
significantly more weight.
• Weights may vary due to different controller modules, IOMs, and power supplies; and differing calibrations between
scales.
Weights may also vary due to the actual number and type of disk drives (SAS or SSD) and air management modules
installed.
Environmental requirements
Table 32. Ambient temperature and humidity
Specification Temperature range Relative humidity Max. Wet Bulb
Operating
RBOD: 5ºC to 35ºC (41ºF
to 95ºF)
EBOD: 5ºC to 40ºC (41ºF
to 104ºF)
20% to 80% non-
condensing
28ºC
Non-operating (shipping) -40ºC to +70ºC (-40ºF to
+158ºF)
5% to 100% non-
precipitating
29ºC
Specification Measurement/description
Airflow
System must be operated with low pressure rear exhaust installation.
Back pressure created by rack doors and obstacles not to exceed 5Pa (0.5 mm H2O)
Altitude, operating
2U enclosures: 0 to 3,000 meters (0 to 10,000 feet)
Maximum operating temperature is de-rated by 5ºC above 2,133 meters (7,000 feet)
5U84 enclosures: -100 to 3,000 meters (-330 to 10,000 feet)
Maximum operating temperature is de-rated by 1ºC above 900 meters (3,000 feet)
Technical specifications 139
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